Hi fabrizio Roy,
The brightness rating of 500 nits will not affect compatibility. The key points are the resolution, refresh rate, and how the displays are connected.
According to Microsoft’s specifications, Surface Laptop Studio 2 can support two external displays at up to 4096 × 2304 and 60 Hz per display. Therefore, two 4K portable monitors should be usable, but you should not expect both of them to operate at 4K 144 Hz simultaneously.
Before purchasing, I recommend checking that each monitor supports video input through USB-C DisplayPort Alt Mode or a compatible HDMI/DisplayPort adapter. You should also check its power requirements, as some portable monitors may need their own power supply instead of receiving both power and video from the Surface.
The connection setup is important because a hub, dock, adapter, or cable can further limit the available resolution and refresh rate. If you can share the exact monitor models and whether you plan to connect them directly or through a dock, the compatibility can be assessed more precisely.
Microsoft’s official specifications are available here: Supported external displays for Surface Laptop Studio
Thank you so much for your understanding.
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